Anyone can help identify?

[XnIcRaM]

Can anyone help to identify it? Who and when made it?

 

[Oldtuleguy]

Probably an old equipment wrench

 

[four.cycle]

https://www.45spaces.com/vintage-wrenches/ - vintage wrenches with pictures

^ THIS is the website with pictures of all kinds of "implement wrenches" aka "buggy wrenches"

I got nothin' in the list ending with "RB "

@XnIcRaM - welcome to the site!

keep this link handy at all times

and this one too!

If you're going to be dragging stuff like that in here, you're going to need them.

 

[thehorse13]

I would try to clean this up and see if other markings become clear enough to read.

 

[XnIcRaM]

https://www.45spaces.com/vintage-wrenches/ - vintage wrenches with pictures

^ THIS is the website with pictures of all kinds of "implement wrenches" aka "buggy wrenches"

I check all from this link but didn't find even one similar to this what I found, it is so unique or maybe it's no so old?

 

[XnIcRaM]

I would try to clean this up and see if other markings become clear enough to read.

I will try, but it looks like nothing more than R B letters and size 5/8 inches

 

[four.cycle]

I will try, but it looks like nothing more than R B letters and size 5/8 inches

I would think it doubtful that any tool manufacturer would set up a die for a wrench with the characters offset to one end.
I would assume there were other letters in front of the "R", but they're not legible or visible because of the degree of deterioration.
Take a little brass toothbrush (about $2.00 at Harbor Freight) and a can of WD40 and go at that thing and see if you can make out any more characters to the left of the "R".

It is quite possible it came from "the other side of the pond", in which case it may be challenging to figure out the maker.

 

[Provincial]

How big is the open end? Perhaps it is not 5/8"?

If it is close to 1.100 inches, it will be Whitworth
If it is close to 1.010 inches, it will be British Standard
If it is 7/8" it is for USS or American Standard bolt heads, 5/8" thread
If it is 15/16" it is for SAE nuts and bolts, 5/8" thread
If it is 1-1/16" it is for USS or American Standard nuts, 5/8" thread

 

[XnIcRaM]

How big is the open end? Perhaps it is not 5/8"?

If it is close to 1.100 inches, it will be Whitworth

It looks like this one. I measure open end around 28mm what is almost equal 1.100 inches

I would think it doubtful that any tool manufacturer would set up a die for a wrench with the characters offset to one end.
I would assume there were other letters in front of the "R", but they're not legible or visible because of the degree of deterioration.
Take a little brass toothbrush (about $2.00 at Harbor Freight) and a can of WD40 and go at that thing and see if you can make out any more characters to the left of the "R".

It is quite possible it came from "the other side of the pond", in which case it may be challenging to figure out the maker.

I cleaned it up a bit and took some measurements, and I'm fairly certain that the only markings on the wrench were the two letters R and B. This is especially likely since the center of the wrench falls exactly between those two letters (as marked with a green line in one of the photos).
It's also evident that the wrench originally had a second open end, but it most likely broke off just behind that open end, or that part completely corroded — corrosion on that side is noticeably more severe.

I live in Poland, and I found this wrench while digging the foundations for my house here in the northwestern part of the country.

 

[four.cycle]

for all things British: gracesguide.co.uk

There is also a site for Sheffield made stuff: https://www.sheffieldhistory.co.uk/

I'm stumped.

 

[RTM]

The recesses built into the right hand set of jaws made it rather unique to me.

No clue on R B. Knowing you are in Poland helps, implies British as 4.c noted. The 1.1” opening size hints pretty hard at Whitworth. Now to poke around a bit.

In an extreme closeup, Google lens thinks it’s a horse shoe, so obviously you are mistaken about it being a wrench.